Negative Processing

I build a crude negative drying cabinet.

Cabinet

Chems

Sodium thiosulfate (pentahydrate/crystalline) - [FIX]

400g - $37 - etsy - $0.0925/g
113g - $7 - ebay - 113g – $0.0619/g
2500g - $50 - ebay - $0.0200/g
1360g - $55 - ebay - $0.0404/g
1360g - $50 - ebay - $0.0368/g
450g - $15 - ebay - $0.0333/g

Sodium sulfite (anhydrous) - [FIX]

30g - $40 - ebay - $1.33/g
500g - $150 - ebay - $0.30/g
500g - $50 - ebay - $0.10/g
450g - $30 - ebay - $0.07/g
450g - $23 - ebay - $0.05/g
225g - $16 - ebay - $0.07/g
450g - $14 - ebay - $0.03/g
100g - $10 - ebay - $0.10/g

Developer

Caffinol

https://petapixel.com/caffenol-developing-film-with-coffee/

https://www.35mmc.com/18/08/2020/polyphenol-developer-alternatives-a-world-full-of-options-by-daniel-keating/

Possibly with espresso given that we have coffee roasting and an espresso machine?

Stop

Fixer

Kodak F-24 based recipe

• Sodium thiosulfate (pentahydrate/crystalline): 240g
• Sodium sulfite (anhydrous): 15g
  • preservative, keeps the bath from oxidizing/degrading between uses
• Water (warm, ~40°C to help dissolution) to make 1L total

Equipment

• Changing bag
• Measuring stuff (
  • graduated cylinders/scale)cylinders
  • scale
• PPE
  • Apron &from PPEbasement
  • Goggles
  • Nitrile gloves from basement
• Reels
  • 35mm reels
  • 110 reels
  • 120/220 reels
• Thermometer